diff --git a/pom.xml b/pom.xml
index 185ebca6..1aabb0e6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <artifactId>sorm4j-parent</artifactId>
   <name>sorm4j-parent</name>
   <description>Simple micro Object-Relation Mapper for Java</description>
-  <version>1.4.15</version>
+  <version>1.4.16</version>
   <packaging>pom</packaging>
   <url>https://github.com/yuu-nkjm/sorm4j</url>
   <licenses>
@@ -29,7 +29,6 @@
 
   <properties>
     <sorm4j-version>${project.version}</sorm4j-version>
-    <xstream-version-in-plugin>1.4.15</xstream-version-in-plugin>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 
diff --git a/sorm4j-example/pom.xml b/sorm4j-example/pom.xml
index 830c13c4..1dbb315c 100644
--- a/sorm4j-example/pom.xml
+++ b/sorm4j-example/pom.xml
@@ -2,11 +2,11 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.nkjmlab</groupId>
   <artifactId>sorm4j-example</artifactId>
-  <version>1.4.13</version>
+  <version>1.4.16</version>
   <description>Example of Sorm4j</description>
 
   <properties>
-    <sorm4j-version>1.4.15</sorm4j-version>
+    <sorm4j-version>1.4.16</sorm4j-version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <additionalparam>-Xdoclint:none</additionalparam>
     <downloadSources>true</downloadSources>
@@ -24,13 +24,13 @@
     <dependency>
       <groupId>com.h2database</groupId>
       <artifactId>h2</artifactId>
-      <version>1.4.200</version>
+      <version>2.1.214</version>
     </dependency>
     <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-core</artifactId>
-      <version>2.17.1</version>
+      <version>2.20.0</version>
     </dependency>
   </dependencies>
   <build>
diff --git a/sorm4j-jmh/pom.xml b/sorm4j-jmh/pom.xml
index 798ab1f4..b613e5ab 100644
--- a/sorm4j-jmh/pom.xml
+++ b/sorm4j-jmh/pom.xml
@@ -26,7 +26,7 @@
   <name>Sorm4j benchmark</name>
 
   <properties>
-    <sorm4j-version>1.4.15</sorm4j-version>
+    <sorm4j-version>1.4.16</sorm4j-version>
 
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
diff --git a/sorm4j/pom.xml b/sorm4j/pom.xml
index 2ec246c8..d6e89a96 100644
--- a/sorm4j/pom.xml
+++ b/sorm4j/pom.xml
@@ -7,7 +7,7 @@
   <parent>
     <groupId>org.nkjmlab</groupId>
     <artifactId>sorm4j-parent</artifactId>
-    <version>1.4.15</version>
+    <version>1.4.16</version>
   </parent>
   <properties>
     <javassist-version>3.27.0-GA</javassist-version>
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/Orm.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/Orm.java
index c1e9e56c..4ac70ae4 100644
--- a/sorm4j/src/main/java/org/nkjmlab/sorm4j/Orm.java
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/Orm.java
@@ -145,6 +145,13 @@ public interface Orm {
    */
   <T> int[] deleteIn(String tableName, @SuppressWarnings("unchecked") T... objects);
 
+  @Experimental
+  boolean execute(ParameterizedSql sql);
+
+  @Experimental
+  boolean execute(String sql, Object... parameters);
+
+
   /**
    * Executes the query with the given PreparedStatement and applies the given
    * {@link ResultSetTraverser}. If you want to set parameters to a PreparedStatement object by
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/OrmConnectionImpl.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/OrmConnectionImpl.java
index aee9b284..90b557f3 100644
--- a/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/OrmConnectionImpl.java
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/OrmConnectionImpl.java
@@ -204,6 +204,19 @@ private final <T, R> R execSqlIfParameterExists(T[] objects,
     return sqlFunction.apply(mapping);
   }
 
+  @Override
+  public boolean execute(ParameterizedSql sql) {
+    return execute(sql.getSql(), sql.getParameters());
+
+  }
+
+  @Override
+  public boolean execute(String sql, Object... parameters) {
+    return executeAndClose(getLoggerContext(), getJdbcConnection(), getPreparedStatementSupplier(),
+        getSqlParametersSetter(), sql, parameters);
+  }
+
+
   @Override
   public <T> T executeQuery(FunctionHandler<Connection, PreparedStatement> statementSupplier,
       ResultSetTraverser<T> traverser) {
@@ -933,6 +946,18 @@ private static <R> R executeQueryAndClose(Connection connection,
     }
   }
 
+  private static <R> boolean executeAndClose(LoggerContext loggerContext, Connection connection,
+      PreparedStatementSupplier statementSupplier, SqlParametersSetter sqlParametersSetter,
+      String sql, Object[] parameters) {
+    try (PreparedStatement stmt = statementSupplier.prepareStatement(connection, sql)) {
+      sqlParametersSetter.setParameters(stmt, parameters);
+      boolean ret = stmt.execute();
+      return ret;
+    } catch (SQLException e) {
+      throw Try.rethrow(e);
+    }
+  }
+
   private static <R> R executeQueryAndClose(LoggerContext loggerContext, Connection connection,
       PreparedStatementSupplier statementSupplier, SqlParametersSetter sqlParametersSetter,
       String sql, Object[] parameters, ResultSetTraverser<R> resultSetTraverser) {
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/SormImpl.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/SormImpl.java
index 4e7db9ab..0970b557 100644
--- a/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/SormImpl.java
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/internal/SormImpl.java
@@ -510,6 +510,16 @@ public TableSql getTableSql(String tableName) {
     return applyAndClose(conn -> conn.getTableSql(tableName));
   }
 
+  @Override
+  public boolean execute(ParameterizedSql sql) {
+    return applyAndClose(conn -> conn.execute(sql));
+  }
+
+  @Override
+  public boolean execute(String sql, Object... parameters) {
+    return applyAndClose(conn -> conn.execute(sql, parameters));
+  }
+
   @Override
   public <T> T executeQuery(FunctionHandler<Connection, PreparedStatement> statementSupplier,
       ResultSetTraverser<T> traverser) {
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/BasicRowMap.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/BasicRowMap.java
index 1f30330f..93a59a63 100644
--- a/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/BasicRowMap.java
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/BasicRowMap.java
@@ -13,9 +13,8 @@
 import java.util.function.BiFunction;
 import java.util.stream.Collectors;
 import org.nkjmlab.sorm4j.internal.util.ArrayUtils;
-import org.nkjmlab.sorm4j.internal.util.StringCache;
 
-public final class BasicRowMap implements RowMap {
+public class BasicRowMap implements RowMap {
 
   private final LinkedHashMap<String, Object> map;
 
@@ -28,12 +27,12 @@ public BasicRowMap(int initialCapacity, float loadFactor) {
   }
 
   public BasicRowMap(Map<String, Object> map) {
-    this.map = map.entrySet().stream().collect(Collectors.toMap(en -> toKey(en.getKey()),
-        en -> en.getValue(), (v1, v2) -> v1, LinkedHashMap::new));
+    this.map = List.copyOf(map.entrySet()).stream().collect(LinkedHashMap::new,
+        (m, v) -> m.put(toKey(v.getKey()), v.getValue()), LinkedHashMap::putAll);
   }
 
-  private static String toKey(Object key) {
-    return StringCache.toCanonicalCase(key.toString());
+  private static String toKey(String key) {
+    return RowMap.toKey(key);
   }
 
   @Override
@@ -48,7 +47,7 @@ public boolean isEmpty() {
 
   @Override
   public boolean containsKey(Object key) {
-    return map.containsKey(toKey(key));
+    return map.containsKey(toKey(key.toString()));
   }
 
   @Override
@@ -58,7 +57,7 @@ public boolean containsValue(Object value) {
 
   @Override
   public Object get(Object key) {
-    return map.get(toKey(key));
+    return map.get(toKey(key.toString()));
   }
 
   @Override
@@ -68,7 +67,7 @@ public Object put(String key, Object value) {
 
   @Override
   public Object remove(Object key) {
-    return map.remove(toKey(key));
+    return map.remove(toKey(key.toString()));
   }
 
   @Override
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/RowMap.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/RowMap.java
index 2888befe..32d34ab7 100644
--- a/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/RowMap.java
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/result/RowMap.java
@@ -5,6 +5,8 @@
 import java.time.LocalTime;
 import java.util.List;
 import java.util.Map;
+import org.nkjmlab.sorm4j.annotation.Experimental;
+import org.nkjmlab.sorm4j.internal.util.StringCache;
 
 /**
  * A instance represents a row in a table. This interface extends {@link Map<String, Object>}. The
@@ -51,6 +53,16 @@ static RowMap of(String k1, Object v1, String k2, Object v2, String k3, Object v
     return create(Map.of(k1, v1, k2, v2, k3, v3, k4, v4, k5, v5));
   }
 
+  /**
+   * Key to canonical key
+   *
+   * @param key
+   * @return
+   */
+  @Experimental
+  static String toKey(String key) {
+    return StringCache.toCanonicalCase(key);
+  }
 
   <T> T[] getArray(String key, Class<T> componentType);
 
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/H2CsvReadSql.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/H2CsvReadSql.java
index 3ddd040c..3384ba82 100644
--- a/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/H2CsvReadSql.java
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/H2CsvReadSql.java
@@ -17,7 +17,6 @@
 import org.nkjmlab.sorm4j.internal.util.ParameterizedStringFormatter;
 import org.nkjmlab.sorm4j.internal.util.StringCache;
 import org.nkjmlab.sorm4j.util.table_def.TableDefinition;
-import org.nkjmlab.sorm4j.util.table_def.annotation.AutoIncrement;
 
 @Experimental
 public class H2CsvReadSql {
@@ -87,7 +86,8 @@ public H2CsvReadSql build() {
         int index = selectedColumns.indexOf(en.getKey());
         if (index == -1) {
           Object[] params = {en.getKey(), columns};
-          throw new IllegalStateException(ParameterizedStringFormatter.LENGTH_256.format("{} is not found in Columns {}", params));
+          throw new IllegalStateException(ParameterizedStringFormatter.LENGTH_256
+              .format("{} is not found in Columns {}", params));
         }
         selectedColumns.set(index, en.getValue());
       });
@@ -164,7 +164,7 @@ public Builder setOrmRecordClass(Class<?> ormRecordClass) {
           .filter(f -> !java.lang.reflect.Modifier.isStatic(f.getModifiers()))
           .toArray(Field[]::new);
 
-      List<Field> autoGeneratedColumn = new ArrayList<>();
+      List<Field> csvSkipColumns = new ArrayList<>();
 
       for (int i = 0; i < fields.length; i++) {
         Field field = fields[i];
@@ -180,14 +180,16 @@ public Builder setOrmRecordClass(Class<?> ormRecordClass) {
           if (ann instanceof CsvColumn) {
             mapCsvColumnToTableColumn(((CsvColumn) ann).value(),
                 StringCache.toUpperSnakeCase(field.getName()));
-          } else if (ann instanceof AutoIncrement) {
-            autoGeneratedColumn.add(field);
+          } else if (ann instanceof SkipCsvRead) {
+            csvSkipColumns.add(field);
           }
 
         }
       }
-      setTableColumns(Stream.of(fields).filter(f -> !autoGeneratedColumn.contains(f))
-          .map(f -> StringCache.toUpperSnakeCase(f.getName())).toArray(String[]::new));
+      setTableColumns(Stream.of(fields).map(f -> {
+        return csvSkipColumns.contains(f) ? "null as " + StringCache.toUpperSnakeCase(f.getName())
+            : StringCache.toUpperSnakeCase(f.getName());
+      }).toArray(String[]::new));
 
       return this;
     }
diff --git a/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/SkipCsvRead.java b/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/SkipCsvRead.java
new file mode 100644
index 00000000..65218ac8
--- /dev/null
+++ b/sorm4j/src/main/java/org/nkjmlab/sorm4j/util/h2/sql/SkipCsvRead.java
@@ -0,0 +1,19 @@
+package org.nkjmlab.sorm4j.util.h2.sql;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+
+/**
+ * The csvread function of the H2 database skips columns based on their annotations.
+ *
+ * @author nkjm
+ *
+ */
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.PARAMETER, ElementType.FIELD})
+public @interface SkipCsvRead {
+
+}